diff --git a/internal/store/store.go b/internal/store/store.go
index ec9e27205..ba8303f95 100644
--- a/internal/store/store.go
+++ b/internal/store/store.go
@@ -498,7 +498,7 @@ func (bs *BlockStore) SaveBlockWithExtendedCommit(block *types.Block, blockParts
 		panic("BlockStore can only save a non-nil block")
 	}
 	if err := seenExtendedCommit.EnsureExtensions(); err != nil {
-		panic(fmt.Errorf("saving block with extensions %w", err))
+		panic(fmt.Errorf("saving block with extensions: %w", err))
 	}
 	batch := bs.db.NewBatch()
 	if err := bs.saveBlockToBatch(batch, block, blockParts, seenExtendedCommit.ToCommit()); err != nil {
diff --git a/types/block.go b/types/block.go
index 9267dcc98..f508245bb 100644
--- a/types/block.go
+++ b/types/block.go
@@ -773,7 +773,7 @@ func (ecs ExtendedCommitSig) ValidateBasic() error {
 // this ExtendedCommitSig.
 func (ecs ExtendedCommitSig) EnsureExtension() error {
 	if ecs.BlockIDFlag == BlockIDFlagCommit && len(ecs.ExtensionSignature) == 0 {
-		return errors.New("vote extension signature is missing")
+		return errors.New("vote extension data is missing")
 	}
 	return nil
 }